Proportional Directional Valve 4WRZE25W6-220-7X/6EG24N9K31/A1V - Bosch Rexroth R901102316

With 220 l/min nominal flow at a limit of 870 l/min, this valve moves heavy cylinders under closed-loop control to 350 bar operating pressure. Pilot supply as well as pilot drain sit outside, so the pilot stage keeps a clean pressure source of its own.

Benefits

• External pilot circuit, pilot stage stays operational when working pressure drops
• 220 l/min nominal flow, 870 l/min flow limit at 350 bar
• Analog command value plus to minus 10 V, on-board electronics at 24 VDC
• Spool symbol W6 with 3 switching positions across 4 ports
• Only 20.12 kg in size 25, FKM seals for HL fluid, UKCA to SI2016/1091

Applications

Test benches, materials testing machines as well as power units with a separate pilot circuit are the usual home. Since the pilot drain does not join the working return, the characteristic stays repeatable even at high tank pressure. Mounting is on a subplate to ISO 4401-08-08-0-05.

Manufacturer

Bosch Rexroth lists this build as R901102316. Performance limit plus step response appear in data sheet RE 29115, RE 07600-B gives the range overview.